Machine for forming pulp-fiber disks.



-NO- 829,645. PATENTED AUG. 28, 1906.

' R.l W. GUEB.

MACHINE FOR FORMING PULP FIBBRDISKS.

APPLIUATION FILED 11:13.15. 190e. n

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, H l 'B- 36 Y7 W BI 83 55 eso-v 27 Wihnesses .R l h wmntv: .mm Udo oef EATENTEE AUG. 2a, 1906.

E. W. GOEE. MACHINE EOE EoEMING PELE EIEEE EIsKs.

APPLIQATION FILED FEB. 15, 1906.

5 SHEETS-SHEET 3.

l i l m 0l w PN lnun W. Goab ,ewa/.1 vAT lll/114g Rudolph AM Witneses NO- 829,645. PATENTED AUG. 28 1906.

R. W. GOEB.

yMACHINE POR PORMING PULP FIBER DISKS.

-APPLI0AT10N FILED FEB. 15. 190e.

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N0. 829,645. L PATENTED AUG. 28, 1906.

X R. W. GUEB. MAGHINE PoR PORMING PULP FIBER DIsKs.

APPLIQATION FILED lFEB. 15. 1906.

' 5 SHEETS-SHEET 5.

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flml I.. y JH HUQJ 6:/ w51- 57'/ "5" 55 56 Z6 gq Z9" o l lmuentov: Rudolph Woeb I o UNITED sTATEs PATENT oEEIoE,

RUDOLPH IN. GOEB, OF ST. LOUIS., MISSOURI, ASSIG'NOR TO UNITED vSTATES FIBER S'IOPPER COMPANY, OF ST. LOUIS, MISSOURI, A

CORPORATION OF SOUTH DAKOTA.

MACHINE Fon FORMING PULP-FIBER Disks.

Patented Aug.' 28, 1906.

.duplication filed February 15,1906. Serial No. 301,247.

To rtl-L wil/om, it iitafy concern.'

- Louis, Missouri, have invented a certain new and useful Improvement in Machines for Forming Pulp-Fiber Disks, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being hadto the accompanying drawings, forming part of this specification, in which- I Figure 1 is a side elevational view showing a machine embodying the features of my invention. Fig. 2 is a transverse sectional view showing the lower die in engagement withthe end of the cylinder and the upperjdie in its elevated position. Fig. 3 is a detail sectional view taken on ythe line 3 3 of Fig. 2. Fig. 4 is a transverse sectional view similar to l Fig. 2, showing the position of the parts after a disk has been formed and ejected onto the tilting table or carrier. Fig. 5 is a front elevational view of the machine shown in Fig.. I. Fig. 6 is an enlarged side elevation showing the dies and the tilting table or carrier. Fig;

7 is 'a longitudinal sectional view on theline- -7 7 of Fig. 6. Fig. 8 is a perspectiveview of a disk, such as is made -in this machine; and

Fig. 9-is a plan view of the lower die with thev screen removed.

This invention relates to machines for making disks to be used in connection with acappiece to form a closure for bottles or other rece t'acles.

T e object of my invention .is to provide a machine of simple construction by -which i disks can be made from pul water.

.In the machine herein s own, whichrepresents the preferred form of my invention, the pulp water, which contains a certain l number of grains of pulp to a cubic inch of water, is introduced into a cylinder in which two perforated dies operate, the dies being brought together to firmly compact the pnl fibers together, and thus form a disl., e erably air-pressure .is applied to one side of the body of pulp-water in the cylinder as the dies are moving together, and means is provided for causing said pressure to force the 'water upwardly through the upper perforated die. At the same time 'the other side of the body water is being subjected to an air -vacuum, so that these two forces oporate to positively draw all of the water away from the pulp fiber, which is molded into thcI form of a disk when the dies are brought together. When the dies are separated, the disk is held in engagement with one of the dies, from which it is ejected onto a movable member that is thereafter actuated to eject it from the machine.

vReferring to the drawings, which represent the preferred form of my invention, l designates the frame of the machine carrying the main drive-shaft 2 and having attached to its upper portion a tank 3 in which the pulp-water is contained, said tank being provided with an agitator 4, which insures a thorou h distribution ofY the pulp fibers thro'ug the water.

',lhev machine heroin shown is provided with means for forming a plurality of disks simultaneously, and as said means are duplicates of one another I will only describe one means. -It is necessary to supply the cylinder in which the forming-dies operate with just thee'xact amount of pulp-water re- ;quiredlto form a disk of the desired thicklness, and vto provide for this a measurin -receptacle 5 is mounted in the bottom o the tank, said receptacle bein open at both ends 4and having. valves 6 an 7 in engagement therewith. The valve 6, ,which closes the -upper end of the receptacle, is provided with a stem 8, which is connected -to a rod 9, said rod extendin into a bore in the lower end of the stem an provided `with a cross-pin 10,

which extends through a slot vin the valve- ICO V come in-contact with the upper end of the l slot in the stem of the upper valve and ele-- vatesaid valve to permit the pulp-water in the'tank to flow into the measuring-receptacle. The valve-actuating rod 9 is then n moved downwardly to seat the upper valve extending theret rough, and also with a bore after the desired uantity of water has flowed into the receptac e, and when the cross-pin in said rod reaches the lower end of the slot in the tubular stem of the lower valve the lower valve will be unseated, so that the pulp-water in said receptacle can pass down the chute 16 into the hopper 17,- which cornmunicates with the cylinder 18 through an opening 19 therein, said cylinder being partially surrounded by a tubular-shaped member 20, that is integral with the hopper and the hopper being connected to the frame of the machine by screws 21. The cylinder 18 is open at both ends, and prior to the entrance of the pulp-Water into said cylinder the lower die 22 is moved upwardly into engagement with the lower end of the cylinder, as shown in Fig` 2. Said die, which is shown in detail in Fig. 7, has a concave face and isprovided with a plurality of perforations 23, through which the water is drained, the upper face of the die being covered by a screen 24, which prevents the pulp bers from be ing drained away .with'the water. Said die is detachably connected to a block 25, fastened to the upper end of a hollow rod 26, which at its lower end communicates with a reservoir or tank 27 by means of a flexible tube 28. Fastened to the block which can ries the lower die are two links 29, which at their lower ends areconneoted to an arm 30 on a rock-shaft 31, said shaft being provided withanother arm 32 which is connected to a positively-actuated lever 33 by means of a nk 34, whereby movement of said positively-actuated lever imparts reciprocating movement-to the lower die. The upper die l,35 is similar in construction to the lower die,

so that theV disk,``.fwhich is molded between them,vwill have convex faces, said upper die being detachably connected to a hollow rod 36, reciprocatingly mounted in the cylinder 18, said rod being provided at its upper end withv two fixed collars .37. A ring 38 surrounds said rod adjacent to the upper collar,

and a s ring 39 is interposed between said ring the lower collar. Fastened to said ring are two links 40, which at their lower ends areA connected to an arm 41 on a rockshaft 42, said arm being connected by means of a link 43- to a positively-actuated lever 44.

As shown clearly in Figs. 2 and 4, a block" 45 is mounted in the hollow rod 36 at approximately the center thereof, said block being provided with a lurality of perforations 46,

47 extending transversely from the exterior to the center of the block. A tube 48 is fas-i tened to the block 45 in communication with the transversely extending bore 47, the lower end ofsaid tube extendin down to the upper die. The tubular-shape member 20, which surrounds the cylinder 18, is tapped at its lower end by a drain-pipe 49, and the cylinder 18 is provided with a longitudinallyextending slot 50, which terminates adjacent to the drain-pipe, said slot being in alinement with the transversely-extending bore in the block 45, so that an exit will be provided for the water as the upper'diev is depressed. A flexible tube 51, which is connected to the upper end of the hollow rod v36, communicates with the bore of said rod, and at the time said rod is moving downwardly to depress the u per die air-pressure is passing.

of water to force the water upwardly through the tube 48 a vacuum is being created in t e hollow lrod 26, which carries the lower die, thereby drawing some of the water downwardly through said rod and into the reservoir 27, these two forces-namely, the airpressure acting on the upper face ofthe body of pulp-water in the cylinder and the vacuum acting on the lower face of the body of pulpwater--operating to draw all the Water away from the pulp fiber, which is molded between theup er and lower dies to form a disk of the form s own in Fig. 8. After the pulp fiber has been molded the lower die is depressed, and just as it commences to move away from the upper die a blast of air is forced upwardly through the hollow rod which carries the lower die to cause the disk to be ejected from the lower die and forced into engagement with the up er die. The .downward movement of the ower die moves a carrier or tilting table 55v into operative position beneath y the* upper die, as shown in Fig. 4, and justlas 'said table arrives in position the upper die is given a slight downward movement until it projects beyondv the end of the cylinder to positively force the vdisk out of the cylinder, a short blast of air which then passes downwardly through the hollow rod which ycarries the upper d-ie ejecting the disk from said upper die onto said tilting table. This tilting table comprises two side plates 56, referably of the form shown in Fig. 6, saidp ates being pivotally connected at 57 to a stationary part of the frame and each having a curved face 58 and an extending arm 59, the u per ends of said side plates being connected y a piece of fibrous material 55', which forms the sup orting-face of the table. It is desirable to ave the supporting-face 4of the table formed of fibrous material, owing to the fact that the disk isvery moistl when it isl ejected from the upper die. The table is swung u "i wardly from its inoperative positionl (shox i f IOO ros

IIC

in Fig. 2) to its operative position (shown'inv ing the arms on the sidelates ofthe tab e as thelower die is depresse` and swinging it u wardlvand inwardly. When said lower ie moves upwardly, rollers 61 on the block 25 engage the curvedfaces of the side plates and swing said table outwardly and downwardly into inoperative position. As the ,table is swung outwardly the disk thereon falls onto an endless belt 62, which conveys it away to asuitable point, said belt being driven vfrom the main shaft of the machine.

As previously pointed out and as shown in Fig. 5, the machine is provided with means Jfor forming a plurality of disks simultaneously, and instead of providing a lever 11 for each valve-actuating rod9 said rods are connected by a transversely-extending bar 63, and only .the two endmost valve-actuating rods are connected to said levers. .These levers 1.1- are pivotally connected at 64 to the frame of the machine, and each lever is operated by means of a link 65, which is connected to an eccentric on the main shaft, as shown in dotted lines in Fig. 4. The levers 33 and 44, which actuate the dies, are fulcrumed at 66 to the frame of the machine, the lever 83 being provided with a roll 67, which travels in a cam-groove 68 in the camblock 69 on the main shaft, and the lever44 being provided with a roll 7 U, which travels in a cam-groove 71'on the other side of said cam-block, the vrock-shafts 31 and42 being provided with arms to which the links for actuating the dies are connected. The drainpipes 49, which are tapped into the tubularshaped members 20, lead to a main drainpipe 75, extending transversely of the machine and thence downwardly to a suitable drain. The flexible tubes 51,.which areconnected to the up er ends of the hollow rods 36, that carry tiie upper dies, are supplied with compressed air from amainpipe 76, extending transverselyof the `machine and supported by stationary brackets 77, one end 'of said pipe communicating witha pipe 78, which leads to a port in a valve-seat. The valveseat is provided with another ort which communicates with a pipe 79, eadin from a lsource of compressed air, and the va ve which operates on said valve-seat is provided with a port which at certain times registers with the ports in said valve seat to establish direct communication between the source of supply of compressed air and the main supply-pi e' 78'to eause a prolonged blasto air to enter t e hollow rod 36 as it i's moving downwardly to` depress the upper die. Said valve is also provided with another port of smaller dimensions which is intermittently brought into communication withthe valve-seat ports to cause afshort blastorl air topass down the rod 36.110 eject the disk from the upper die. The

.extending transverse reservoir 27, with which the tubes 28, lead ing from the lower dies, communicate, is tapped by a pipe 80, that leads to a port in the valveseat, which is provided with another port that communicates with a. pipe 81, leading from a vacuum-pump. The valve is pro- `vided with a port which registers with the valve-seat ports .just referred to, so that a vacuum is created in the tubes 28 in communication with the hollow rods that carry the lower-dies, the Water which is drawn through said tubes passing into the reservoir 27. As previously ointed out, a short blast of air passes up t rough the lower die to force the disk into engagement with the upper die, and to provide for this the valve is so constructed that it intermittently establishes communica tion between the compressed-air-supply pipe andthe pipe leading to the reservoinso that a vacuum is being created in said reservoir for a certain time and then changed to air-pressure. The valve mechanism 88 above referred to, with which the machine is'provided, forms no part of m present invention, so further description o same is deemed unnecessary,

.it being similar to that shown and described in my prior United States patent, No. 801,659, in which the valve is carried by the main shaft. Y

The bottom'of the reservoir is rovided with a valve 84, that is normall hel in operl ative position by a spring 85, t e valve being displaced after a certain quantity of waterV has entered the reservoir and this displacement ofthe valve being. aided by the bla'stof air which intermittently enters the reservoir. Preferably, Vand as herein shown, the reser- -voir is located at approximately the center of the machine and is provided with an extension 86, which is tapped by a main pipe 87, y of the machine, some of the flexible tubes being connected to said main pipe. Y Having thus described my invention, what I claim as new, and desire to secure by Let- 1. In a machine of the class described, a device for holding liquid pulp fiber, a perfo- -rated die and a coperatin die for molding said pulp fiber. into a pre1( etermined form, means for subjecting the face of said body of pulp fiber which is acted upon by the perforated die to air-pressure, and means for causing said air-pressure to force -the liquid from said pulp fiber 'through said perforated die; substantially as described. 2. In a machine of. the class described, a' device for containing la quantity of liquid ulp fiber, means -:for molding said pulp fiber 1nto the form of a disk, means for sub]ecting one face of said disk to an air-'vacuum to with draw the liquid from the fiber, means for subjecting the other-face-of said disk to a blast of compressed air, and'means for causing said blast to force liquid out through the face ros to the blast ofdetermined form, apipe 1n communica-tion,

with the perforated die, and means for subjecting .the face of said pulp ber which is acted upon by said perforated die to air-pressure whereby the liquid is forced from said ber out through said pipe; substantially as described.

4. In a machine of the class described, a tank for holding liquid pulp ber, means for measuring the pulp ber into predetermined quantities, a cylinder for receiving the pulp ber, means operating in said cylinder for molding said ber into the form of a disk, means for extracting the liquid from said pulp ber during the molding operation, and means for-ej ecting the disk from the machine; subst-antially as dmoribed.

5. In a machine of the class described, a cylinder for holding liquid pulp ber, a perforated die for closing one end of said cylinder, a coperating perforated die reciprocatingly mounted in said cylinder for molding the `pulp ber into the form of a disk, means for forcing air through said-last-nam-ed die,

and a pipe in communication with said ldie for carrying away'the Water which isy forced through the outer face thereof; substantially as described.

6. In a machine of the class described, a

cylinder for containing liquid pulp ber, a perforated die for closing one .end of said cylinder, a cooperating perforated die reciproc-atingly mounted in said cylinder and operating to mold the pulp ber into 'the form of a disk, ahollow rod on Which -said last-named die is mounted, .a discharge-tube located in said rod, andan air-pressure for-.forcingthe liquid out of the pulp material and into` said discharge-tube; substantially as described.

, 7. In a machine of the class described, a cylinder for containing liquid pulp ber, a perforated die for closing one .end of said cyl-' nder, .a coopera-ting perforated die mounted in said cylinder, means for actuating said dies to mold the pulp ber into the form of a disk, means for forcing the liquid. in said pulp ber lthrough both of said dies, and automatic meansfor supplying the cylinder with predetermined quantities of .liquid pulp ber; substantially as described.

8. In a machine of the class described, a

cylinder for containing liquid pulp ber, up-

per andlower dies coperatingwithsaid cy1in.l der for molding the pulp ber into the formof a-disk, actuating niechanism-for said dies, means for holding .the disk in engagement -with one of said dieswhen lthey are sepa-v rated, a carrier, means for moving said carrler into position between the dies, means for ejecting the disk onto said carrier, and means for actu-ating said carrier to remove the disk from the machine; substantially as described. 9. In a machine of the classdescribed, a cylinder for holding liquid pulp ber, perforated dies for molding said pulp ber into a disk, an air-pressure loperating upon one side of the body of pulp, means for causing said'-4 air-pressure to force the liquid through the die Which operates upon that side ofthe ber to force the liquid therefrom, a vacuum operating upon the other side of the body of pulp ber to' draw the liquid therefrom and into a cylinder for holding liquid pulp ber, a perforated die, a rod carrying said die and pro- I vided with a bore, atube communicating with the bore of said rod, means for creating a vacuum in said tube, a coperating perforated die, a rod carrying said Adie and provided With a bore, a supply of compressed air communicating :with the bore of said rod, a block mounted in said bore and provided with perforations, a tube extending from saidlblock yto the die-on said rod, a transversely-extending bore in said block leading from said tube, andl a vvslot in said cylinder adapted to register with the transverselyextending bore of the block; substantially as described. l Y

11. `In a machine-of the class described, a

tankfor holding liquid pulp ber, a plurality of cylinders, 'a plurality of measuring devices *fon-apportioning 'the liquid pulp ber into predeterminedquantities, means for conveylingthe pulp ber in its liquid state from said measuring; vdevices into said cylinders, cooperating dies for each cylinder to mold the pulp ber into the form ofa disk and means for extracting the liquid from said pulp ber during-the molding operation; substantially as described. 1 j l .12. In a machine of :the class described,a

tank for holding liquid pulp ber, a measuring device, means for operating said device intermittently to measure the liquid pulp ber into'predetermined quanti-ties, -a cylinder, means for conveying the pulp ber in its liquid state from themeasuring device to the cylinder, molding-dies for pressing thepulp ber inthe cylinder into the form-of adisk, l means for actu-ating said dies intermittently,

IOO

and means for extractingthe liquidfrom the -lpulp ber during the molding operation;l

substantially asxdescribed. 13.,In a-machine ofthe class described, a l

vvertically-disposed cylinder for holding liquid pulp ber,.reciprocating dies for ressing isaid pulp berinto the form of a dis a plurality of rock-shafts` provided lWith varms,

connecting-links between said arms andsaid dies, a yielding connection between one die and its actuating-link, `and means for operating said rock-shafts; substantially as described. f'

14. In a machine oithe class described, means for molding pulp ber into the form of a disk, a tilting table for receiving said disk as it leaves the molding-dies, said table having a receiving-face Which is formed of fibrous material, and 'means actuated by the o mechanism Which moves one of said dies Jfor for measuring the liquid pulp ber into pedetermined quantities, 'a'plurality of cylinders which receive the pulp ber in its liquid state, a pluralityT of automatically-actuated dies coacting With said cylinders 'for molding the pulp ber into disk form, a compressedair supply, and an air-Vacuum coperatlng with each set of dies for extracting the liquid from the pulp ber. during the molding operation, means for ej ecting'said disks from the dies, and' means for conveying said disks out of the machine; substantially as described. In testimony whereof I hereunto afx my signature, in the presence of two Witnesses, thisBOth day of January, 1906.

RUDOLPH W. GOEB. Witnesses:

F. R. CORNWALL, GEORGE BAKEWELL. 

